EP 1517877 A1 20050330 - PREPARATION OF CHIRAL AMINO-NITRILES
Title (en)
PREPARATION OF CHIRAL AMINO-NITRILES
Title (de)
VERFAHREN ZUR HERSTELLUNG CHIRALER AMINONITRILE
Title (fr)
PREPARATION D'AMINO-NITRILES CHIRAUX
Publication
Application
Priority
- US 0319271 W 20030619
- US 18509202 A 20020628
Abstract (en)
[origin: US2004002615A1] A process and intermediates for producing 3-amino nitrites. The process involves resolving an enantiomeric mixture of chiral 3-amino nitrites in the presence of a chiral acid in a solvent system to produce a chiral 3-amino nitrile salt. The process may further comprise a recrystalizing step, wherein an enantiomerically enriched 3-amino nitrile salt is produced. The process may further comprise a salt exchanging step, wherein another acid is added to the chiral 3-amino nitrile salt or the enantiomerically enriched 3-amino nitrile salt to produce another 3-amino nitrile salt.
IPC 1-7
IPC 8 full level
C07C 253/34 (2006.01); C07B 57/00 (2006.01); C07C 69/78 (2006.01); C07C 253/30 (2006.01); C07C 255/24 (2006.01)
CPC (source: EP US)
C07C 253/30 (2013.01 - EP US); C07C 255/24 (2013.01 - EP US); C07B 2200/07 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2004002615 A1 20040101; AU 2003245572 A1 20040119; CN 1665760 A 20050907; EP 1517877 A1 20050330; JP 2005531633 A 20051020; US 2005038281 A1 20050217; US 7301044 B2 20071127; WO 2004002924 A1 20040108
DOCDB simple family (application)
US 18509202 A 20020628; AU 2003245572 A 20030619; CN 03815398 A 20030619; EP 03739199 A 20030619; JP 2004517679 A 20030619; US 0319271 W 20030619; US 94616704 A 20040921